Ingredients:

• 1 tablespoon extra virgin olive oil
• 1 teaspoon butter
• 2 medium yellow onions, chopped (about 2 cups)
• 1/2 cup dry white wine, optional
• 3 large Yukon Gold potatoes (about 1 1/4 pounds), peeled and cut into 3/4-inch cubes
• 2 cups clam juice
• 1 bay leaf
• 1 tablespoon fresh thyme, or 1 teaspoon dried thyme
• 1 1/2 teaspoons salt
• 1/4 teaspoon freshly ground black pepper
• 1 teaspoon Old Bay, optional (can use a little paprika and a dash of cayenne)
• 1 1/2 to 2 pounds cod or other firm white fish, pin bones removed, fillets cut into 2-inch pieces
• 1 1/2 cups heavy cream
• 2 tablespoons chopped fresh parsley